1020166171501 has 8 divisors (see below), whose sum is σ = 1024096765824. Its totient is φ = 1016235968880.

The previous prime is 1020166171499. The next prime is 1020166171579. The reversal of 1020166171501 is 1051716610201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020166171501 - 2¹ = 1020166171499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020166171001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5803816 + ... + 5977006.

It is an arithmetic number, because the mean of its divisors is an integer number (128012095728).

Almost surely, 2^{1020166171501} is an apocalyptic number.

It is an amenable number.

1020166171501 is a deficient number, since it is larger than the sum of its proper divisors (3930594323).

1020166171501 is a wasteful number, since it uses less digits than its factorization.

1020166171501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195851.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 1020166171501 in words is "one trillion, twenty billion, one hundred sixty-six million, one hundred seventy-one thousand, five hundred one".